I'm still running a 2014 kit, I'd like to start running the splined stuff. It seems cost prohibitive but at 75 bucks a piece for the keyed sprockets its a chunk of change to replace all 3. I think the biggest thing is the older brake rotor is bigger, but I think the rotor itself would bolt to the newer hub so not that big a deal. Anybody done it and what did it cost. With the polaris parts fiasco I havent really looked into it that much. I know I should just sell and buy a newer kit, but the used market sucks and I'm done buying timbersleds. I'd rather just keep fixing the one I have. I've heard the shaft itself is easy to find in bulk, except the trackshaft might be difficult to make, probly easiest to just buy from timbersled. It would be nice if they offered a shaft upgrade kit for like 400 bucks! (new bearings, both shafts, 3 sprockets, all spacers and a brake hub, and obviously all hardware)
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